Synthesis of Functionalized γ-Spirolactone and 2-Oxabicyclo[3.3.0]octane Derivatives from Nucleophilic Oxirane Ring Opening
作者:Margareth Rôse de L. Santos、Eliezer J. Barreiro、Raimundo Braz-Filho、Carlos Alberto M. Fraga
DOI:10.1016/s0040-4020(00)00442-7
日期:2000.7
Methyl 1-(2-oxiranylmethyl)-2-oxo-1-cyclopentanecarboxylate (4) was subjected to the nucleophilic ring opening reaction, leading to the formation of the functionalized 2-oxaspiro[4.4]nonane and 2-oxabicyclo[3.3.0]octane derivatives, which are important structural sub-unit present in several classes of bioactive compounds. The products obtained were characterized on the basis of spectral data, including
使1-(2-环氧乙烷基甲基)-2-氧代-1-环戊烷甲酸甲酯(4)进行亲核开环反应,导致形成官能化的2-氧杂螺[4.4]壬烷和2-氧杂双环[3.3.0]。辛烷衍生物,是存在于几类生物活性化合物中的重要结构亚单元。根据包括1D和2D NMR在内的光谱数据对获得的产物进行表征。